My granddaughter has exercise induced asthma. can throwing a fit, crying, yelling, kicking, etc cause an attack? even a very mild one?

It can: Emotional disturbance can trigger an asthma attack even in people who do not have exercise induced asthma. It would be prudent to consult her pediatrician.

Asthma and Emotions: You care very caring Grandmother! The symptoms of EIA are coughing, wheezing, a feeling of tight chest, or shortness of breath. Fast activities, exercising near lawns just mowed, polluted air may trigger asthma symptoms. Strong emotions trigger the release Histamine and Leukotrienes, which can trigger the narrowing of airway. See a Child Psychiatrist for Individual and family Therapy